pvr: extended PVRSRVMapDeviceMemoryBW interface to support non-SGX mapped memory

pvr: extended PVRSRVMapDeviceMemoryBW interface to support non-SGX mapped memory

BZ: 19617

This is 1/4 patch to solve 1080p video playback low memory issue which was caused
by unnecessary SGX memory mapping.

This patch extended PVRSRVMapDeviceMemoryBW interface to support no SGX mapped
memory mapping, so that PVR service layer only maps a given buffer to CPU address
space.

Change-Id: Ic156ae54b9f960face644ae8a0833a97a7c952a3
Signed-off-by: Jackie Li <yaodong.li@intel.com>
Reviewed-on: http://android.intel.com:8080/32070
Reviewed-by: Hu, Jason <jason.hu@intel.com>
Reviewed-by: Hu, Austin <austin.hu@intel.com>
Reviewed-by: Ding, Haitao <haitao.ding@intel.com>
Tested-by: Ding, Haitao <haitao.ding@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>